ULTRA TNT + 15 DENIER NYLON HYBRID DESIGN The UltraFly 1 tent was designed after thorough field testing with both traditional nylon and advanced laminate composite materials (UHMPWE). Through this process, we discovered that each material plays a crucial role in crafting the ideal tent. The innovative ULTRA TNT fabric has a significant advantage: it absorbs no water and can easily be wiped clean and dried if exposed to rain or condensation, making it the perfect choice for the tent floor. However, laminate is not ideal for the rainfly, as water tends to bead-up on the inside and splash droplets onto you and your sleeping gear. For the rainfly, we selected 15-denier nylon, a reliable and effective material proven for this use. The combination of these materials works seamlessly together, ensuring campers stay dry and confident that their gear will remain protected from moisture. Also, with our exclusive patented insertion point setup system, the UltraFly 1 allows you to set up and break down camp in no time, leaving your friends amazed at how quickly you&';re ready to go!